Xerox phaser 8560 nvreset - how?

According to http://www.laserquipt.com/support/idx/42/615/article/-Reset-the-Printer-to-the-Factory-Defaults-NVRAM-Reset-.html (and it worked for me):



NOTE: Resetting NVRAM returns stored parameters in the image processor board NVRAMto their factory default values. The print count and the Adobe firmwareserial number are not affected by this reset. You can reset the PostScript NVRAM using the Service Tools menu or the Service Diagnostics menu.
To reset the printers NVRAM using the Service Tools menu:

NOTE: Print a Configuration Page before resetting NVRAM.
Pressand hold the [Up] arrow button on the Control Panel, and then press the[OK] button. This will automatically display the Service Tools menu onthe Display Screen.

1. Press the [OK] button.
2. Press the [Up] or [Down] arrow button to select [Reset NVRAM], and then press the [OK] button.

1. Pressthe [Up] or [Down] arrow button on the Control Panel to select[Troubleshooting] on the Display Screen, and then press the [OK]button.
2. Press the [Up] or [Down] arrow button to select [Service Tools], and then press the [OK] button.
3. Press the [Up] or [Down] arrow button to select [Reset NVRAM], and then press the [OK] button.
4. Press the [Up] or [Down] arrow button to select [Exit], and then press the [OK] button to return to the Main screen.